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Clinical Psychologist

William Geiger Iii

Sees patients in Baltimore, MD · Maryland

Summary

William Geiger Iii (Clinical Psychologist) is enrolled with Medicare at 1 practice location in Baltimore, MD. NPI 1750316840. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about William Geiger Iii, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Clinical PsychologistPrimary specialty
YesAccepts Medicare assignment
27Years since medical school (graduated 1999)
Perelman School Of Med At The University Of PennsylvaniaMedical school
MaleGender (as listed)

Quick answers

Where does William Geiger Iii see patients?
Medicare's clinician data lists 1 practice location in Baltimore, MD. Call before your visit to confirm the address.
What is William Geiger Iii's specialty?
Medicare lists Clinical Psychologist as the primary specialty.
Does William Geiger Iii accept Medicare assignment?
Yes. Medicare's clinician data says William Geiger Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for William Geiger Iii?
(410) 426-6370, as listed in official Medicare / NPI Registry data.
What is William Geiger Iii's NPI number?
1750316840. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where William Geiger Iii is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other clinicians: Clinical Psychologist, Maryland →

Other clinical psychologists in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

All clinical psychologists in Baltimore →

Clinician information

Medical schoolPerelman School Of Med At The University Of Pennsylvania
Graduation year1999
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1750316840
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians